Cipher Text

Click cipher blocks to reveal decryption hints.

The Library exists ab aeterno

Use Shift Cipher: n = (x + 23) mod 26
Use Vigenère: k[i] = (p[i] + key[i]) mod 23
Use Affine: E(x) = (ax + b) mod 23
Use Substitution: σ(x) → (x * 11) mod 23